archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-21 03:24:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

7052219: JSR 292: Crash in ~BufferBlob::MethodHandles adapters

Browse source 
Reviewed-by: twisti, kvn, jrose
This commit is contained in:
Tom Rodriguez 2011-06-14 14:41:33 -07:00
parent bb3a527f9a
commit 0c0705ca8c
8 changed files with 105 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

8
hotspot/src/cpu/x86/vm/methodHandles_x86.cpp
View file

@ -1644,14 +1644,16 @@ void MethodHandles::generate_method_handle_stub(MacroAssembler* _masm, MethodHan
// rax = src_addr + swap_bytes
// rbx = dest_addr
// while (rax <= rbx) *(rax - swap_bytes) = *(rax + 0), rax++;
__ addptr(rbx_destslot, wordSize);
// dest_slot denotes an exclusive upper limit
int limit_bias = OP_ROT_ARGS_DOWN_LIMIT_BIAS;
if (limit_bias != 0)
__ addptr(rbx_destslot, - limit_bias * wordSize);
move_arg_slots_down(_masm,
Address(rax_argslot, swap_slots * wordSize),
rbx_destslot,
-swap_slots,
rax_argslot, rdx_temp);
__ subptr(rbx_destslot, wordSize);
__ subptr(rbx_destslot, swap_slots * wordSize);
}
// pop the original first chunk into the destination slot, now free
for (int i = 0; i < swap_slots; i++) {